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https://issues.apache.org/jira/browse/CASSANDRA-16457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Yeschenko updated CASSANDRA-16457:
------------------------------------------
    Reviewers: Aleksey Yeschenko, Jon Meredith, Aleksey Yeschenko  (was: 
Aleksey Yeschenko, Jon Meredith)
               Aleksey Yeschenko, Jon Meredith, Aleksey Yeschenko  (was: 
Aleksey Yeschenko, Jon Meredith)
       Status: Review In Progress  (was: Patch Available)

> Hint messages are incorrectly re-serialized for filtering in in-jvm dtests
> --------------------------------------------------------------------------
>
>                 Key: CASSANDRA-16457
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16457
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Test/dtest/java
>            Reporter: Alex Petrov
>            Assignee: Alex Petrov
>            Priority: Normal
>
> Hint messages for dropped tables can still be dispatched, but they’re ignored 
> on the receiving side all usual code paths. Since we’re attempting to 
> re-serialize hint message for dropped table in in-jvm tests, we exercise path 
> that is impossible in regular code, and for which there is no protocol 
> specification. 
> Stack trace: 
> {code}
> INFO  [AsyncAppender-Worker-ASYNC] 2021-02-17 18:50:13,759 
> SubstituteLogger.java:169 - ERROR [MutationStage-2] 2021-02-17 18:50:13,726 
> AbstractLocalAwareExecutorService.java:166 - Uncaught exception on thread 
> Thread[MutationStage-2,5,node4]
> java.lang.NullPointerException: null
>       at 
> org.apache.cassandra.hints.Hint$Serializer.serializedSize(Hint.java:150)
>       at 
> org.apache.cassandra.hints.HintMessage$Serializer.serializedSize(HintMessage.java:86)
>       at 
> org.apache.cassandra.hints.HintMessage$Serializer.serializedSize(HintMessage.java:77)
>       at 
> org.apache.cassandra.net.Message$Serializer.payloadSize(Message.java:1289)
>       at 
> org.apache.cassandra.net.Message$Serializer.access$1200(Message.java:607)
>       at org.apache.cassandra.net.Message.payloadSize(Message.java:1341)
>       at org.apache.cassandra.net.Message.access$900(Message.java:66)
>       at 
> org.apache.cassandra.net.Message$Serializer.serializePost40(Message.java:759)
>       at 
> org.apache.cassandra.net.Message$Serializer.serialize(Message.java:618)
>       at 
> org.apache.cassandra.distributed.impl.Instance.serializeMessage(Instance.java:322)
>       at 
> org.apache.cassandra.distributed.impl.Instance.lambda$registerInboundFilter$4(Instance.java:273)
>       at 
> org.apache.cassandra.net.InboundSink$Filtered.accept(InboundSink.java:62)
>       at 
> org.apache.cassandra.net.InboundSink$Filtered.accept(InboundSink.java:49)
>       at org.apache.cassandra.net.InboundSink.accept(InboundSink.java:93)
>       at 
> org.apache.cassandra.distributed.impl.Instance.lambda$null$6(Instance.java:365)
>       at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>       at 
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162)
>       at 
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$LocalSessionFutureTask.run(AbstractLocalAwareExecutorService.java:134)
>       at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:119)
>       at 
> relocated.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
>       at java.base/java.lang.Thread.run(Thread.java:834)
> {code}



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